Issued Patents All Time
Showing 26–33 of 33 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6749968 | Method for fabricating a thin-membrane stencil mask and method for making a semiconductor device using the same | Pawitter Mangat, Joe Mogab, James R. Wasson | 2004-06-15 |
| D417811 | Infant comfort mat | — | 1999-12-21 |
| D313378 | Railroad hopper car end slope collar casting | Keith J. Hallam | 1991-01-01 |
| D311359 | Railroad hopper car cross ridge collar casting | Keith J. Hallam | 1990-10-16 |
| 4884511 | Aluminum hopper car with cast collars interconnecting intersecting center sill hood with ridge hood and sloped end walls | Keith J. Hallam | 1989-12-05 |
| 4813359 | Single axle railroad truck with frame improvements | Walter J. Marulic | 1989-03-21 |
| 4662343 | Method and apparatus for generating high voltage pulses | — | 1987-05-05 |
| 4594948 | Liquid and solid dual lading railroad car | Walter J. Marulic | 1986-06-17 |